257901432837

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{63726571}}^1$

素因数の和:63726664

約数の個数: 16

約数和(自身を含む): 367065054720

約数和(自身を除く): 109163621883

約数列:

[1, 3, 19, 57, 71, 213, 1349, 4047, 63726571, 191179713, 1210804849, 3632414547, 4524586541, 13573759623, 85967144279, 257901432837]

約数ペア:

[(1, 257901432837), (3, 85967144279), (19, 13573759623), (57, 4524586541), (71, 3632414547), (213, 1210804849), (1349, 191179713), (4047, 63726571)]